Final answer:
The usual generation voltage of a power plant is typically 220 kV to 440 kV, where it is then transmitted over long distances to limit energy losses.
Step-by-step explanation:
The usual generation voltage of a generation station (power plant) is typically 220 kV to 440 kV. Electric power is generated at greater than 10 kV and is then transmitted over long distances at voltages ranging from 120 kV to 700 kV. Doing so helps to limit energy losses during transmission. Step-up transformers are utilized at the exit of the power station to increase the voltage to these levels. The increased voltage allows for more efficient transmission on power lines and is stepped down through substations before it reaches local distributions and eventually the end-user.